Clamp



Aug. 8, 1933. E. F. BATTERMAN ET AL CLAMP 3 Sheets-Sheet 1 Filed Feb. 5,1931 wanna:

Aug. 8, 1933. E, F. BATTERMAN ET AL CLAMP Filed Feb. 5, 1931 5 Sheet 2Aug. 8, 1933. E. F. BATTERMAN ET AL 1 CLAMP Filed Feb. 5, 1931 v 3Sheets-Sheet 3 v is Patented Aug. 8, 1933 a zl f' 1 v I Elmer F.Batterman and Joseph .verderben'Cleve sal Jig Company,

tion of Ohio Application February land, hio, assignors to The ClevelandUniv er Cleveland; Ohio, a corpora:

ssaimol 513. 2 1

9 Claims. (on. 774 2) This'jinvention relates to a jig for "holding.

I V split-ring clampsor machineparts having splitring' clampsincorporated thereinfor the purpose of drilling the same to receive theclamping bolt.

The main objectof the invention is to provide such a jig which shallbewell adapted for its purpose, simple in construction and economical of'manufacture. A more specificobject is to provide such a jig whichwill'firmly. rip the 1 split-ring clamp atfboth sides of itsdividingkerf and enable the clamping bolt hole to be drilled or reamed withoutdanger of binding while assuring that the said hole shall be continuousthrough the two halves: A" furtherobject is the incorporation of a lockin cbnnec: tion with the'holding means which engages the split-ringclamp, of such character as to allow the holdingmeans to be advancedinto holding "position and retracted irom'such position by the 0operation of aclamping lever while preventing retrograde motion of theholding member by the force o'freaction to the movement'of-the holdingplunger. A further object is the provision of an adjustable drill orreamer guide for assuring proper. positioniingof the drill or 'rearnandmore limited objects, will become. apparent as the specificationproceeds. t

Fig. 1 is a plan or elevational view, depending ;v uponwhether thedr'illor reamer is to' bevertically or'horizontallydisposed; Fig. 2 isan e1evational view; Fig. 3 is an end view; Fig. 4 isa section on line45-4 of Fig. 1; Fig. '5 is a section on line 55 of Fig. '1; Fig; 61is afragmentary perspective view of the holding memberand a portion of theholding plunger; Fig. 7 is 'a detail elevation of the split-ringclamp-holding stud; Fig. 8 is an, 'end view of the same? Fig.

9 is a fragmentary end View of a piece of mechanism embodying asplitring clamp; Fig; '10 is t a fragmentary side elevation'thereoi; Fig.llis a sectional view of the locking means correspond ing to a sectionon the line l111 of Fig. "1;

and Fig. 12 is a section on line l2-l2 of Fig. l.

InFigs. 9 and lO, we have shown a piece of mechanism embodying'asplit-ring clamp: of the type with which this machine is designed to beused. As shown, this clamp includes a ring portion 10 which is adividing kerf 1 2'and projections 1 3 through which a clamping bolt isadaptedto pass for firmly clamping the'ring 10 against a shaft 00-cup'yingthespace ll. Aclamping bolthole 14 is tojbe formed by a drilloperating "in conjuncer with respect to the clamping bolt hole. j Othercooperate. with the washer tion with the "embodiment of my present invention. It is to. be understood that the. clamping bolt" hole 14' may beroughly formed prior to this operation and reameditotrueshape insteadof-being'drilled; 1

The embodiment 'of. our invention illustrated includes a maincasting'orcsupport S having various projections,bearings, guideways and thelike formed thereon for mounting the various moving parts-in properoperative relation to each other; A portion S of the support S "carriesahol'der s rlprovided with a central opening adapted to receive aclamped. ring-holding stud upon which the clamp ring is received by pacing the opening 11 thereofn'over'ltheend T of the stud T. A' guideopeningG is .formed'in the body of the casting or supports and receivesa plungerl which is provided with ar'holding member Hu'adapted toengageffthe" split-ring clampat "the {two sides of. its divided ker'f'12 whereby to hold =them, in.'f1rm"ly.fixed position when the plungeris moved toward the stud T.

The Toasting s is also provided witha cylindrical opening J whichreceives av shaft R which car ries a pinion and a portion L oi-alockingmechanism L in fixed'vrelation' thereon.. A drill or reamer guide Disadjustably carriedby the castingor supportfi and is slidable withrespect thereto. i v The stud T includes the clamp receiving portion' Thaving a portion -cut away as at; Jal

collar T an'd a threaded portion T adapted. to

support S, as clearly'iridicatedin the drawings.

Thecutaway portion T is provided for the purpositioning thesame 1nproper relation to the The holdingmember His provided with a 'pa'ir ofprojections H each having-aV-shaped or apart for the purpose of engagingthe projections 13 of the split-ring clamp at opposite sides of thedividing-kerf 12. The detailedcon'str ucthe projection I-I and the stud15 'isfclea'rly indi- *cated in Figs. 4 and, v6 taken together." Theadapted to receive a shaft in the r 50 opening 11 thereof and whichfisprovidedwith holding Iplunger P which carries "the holding ing G and hasrack teeth 13 rormea'theropg; g

, notched 'end portion, said portions being spaced The shaftR includes aportion 'R}. whicha'cts I as a bearing in the supports, a pinion portionM of an external diameter of size equal tofthe portion-R a" projectionR? adapted to carry the c portion L of the lock Land to journal thepar-7 tion L of said lock, and the small projection at the oppositeendfromthe projection R adapted to be journaled in the bearing plate 16.The

pinion M engages the rack teeth P? for the purpose of advancing' theholder member 'H forv engagement with the split ring clamp whenthe shaftR is rotated in the advanced direction. a

The locking member L includes a sleeve L 'forming a part of the castingS, or beingseparate and fixedly attached thereto, as desired, the

member L which is keyed on. the shaft R. and

S, for securing straight line movement, and is provided with a renewablebushing 22 which is received in an opening at one end thereof and isadapted to be positioned in alignment with those'portions ofthe'projections 13 and ring 10 r which occupy a position of the clampingbolt hole 14 to be drilled or reamed.

In Fig. 1 we have shown the provision of a scale 23 on a portion of thesupport S alongside, the plate D, which may cooperate with a hair line,24 on the adjusting plate, D for the purpose of determiningwithexactness the posi-- tion of said adjusting plate. 1/

Theoperation of. the locking mechanism dis- 7 closed herein willnotbedescribed since this lock isdisclosed in'a co-pending applicationand per se forms no, part of the present. invention.

While'we haveshown and described .the preferredembodiment of ourinvention, we wish it understood that we are not limited 'to the detailsof such embodiment andthatour inven-- tion issusceptible of numerousvariant embodiments within the scope of the appended claims.

"r-I-Iavirlg thus described our invention, what we .claim is: I 1. A-jigfor holding split-ringclamps for 'drill ingor reamingthe clampingboltholes includ- 'ing, a support, a stud carried, by said supportandadapted to receive said split-ring clamp thereon,

' a holdingmember adapted to engage saidlsplitring-clampf at: both sidesof itsdividing kerf, v and means for urging said holding member intoholding engagement with said split-ring. clamp.

and for locking same in such engagement in any position. ,f

2. A jig for holding split-ring clamps for drilling or reamingtheclamping bolt holes including, a support, a stud carried by said supportand adapted. toireceive said split-ring clamp thereon, aholding memberadapted to engage saidsplit-ring clamp at both sides ,of its dividingkerf, means for urging said holding member into holding engagement withsaid split-ring clamp and for locking same in such engagement in anyposition, and a drill or reamer guide sup-.

ported on saidsupport and, adapted to efi'ect properrelatiye'positioning of I said jig and a V drill or. reamer.

3. A jig for holding split-ring clamps for drilling. or reaming theclamping bolt holes including, a support,.a stud carried by said supportand adapted to receive said split-ring clamp thereon,

portedon said support and adapted to effect one side of its dividingkerf.

reamer.

a holding member adapted to engage said splitring clamp at both sides ofits dividing kerf,

and means for urging said holding member into holding engagement withsaid split-ring clamp and for locking same in such engagement, saidholding member being provided with a pair of spaced notched projectionseach adapted for engaging said'split-ring clamp at one. side of itsdividing kerf.

.. 4; A jig for holding split-ringclamps for drill- .ing or reaming theclamping bolt holes including, a support, a stud carried by said'supportholding member adapted to engage said splitring clamp, when held by saidstud at both sides of its dividing kerf, means for urging said holdingmember into holding engagement with said split-ring clamp and forlocking same in such engagement, and a drill or reamer' guide sup!proper relative positioning of said jig and aldrill or reamer, saidholdingmember being provided. with a pair of spaced notched projectionseach adapted for engaging said split -ring clamp at 5. A jig for holdingsplit-ring clamps for drilling or reaming the clamping bolt holes including, a support, a stud carried by said support and adapted to receive.vsaid split-ring clamp, a holding member adapted to engage saidsplitring clamp, when held by'said stud at both sides of its dividingkerf, and means for urging said holding member into holdingengagementjwith said split-ring clamp; and forlockingsaid member in suchengagement, said stud being removable.

6. A jig for holding split-ring clamps for drilling or reaming thevclamping bolt holes including, a support, av stud carried by said.support i and adapted to receive said split-ring clamp, a n5 holdingmember adapted to engage said. split-* ring clamp, when held by saidstudat both sides of its dividing kerf, and means for urging saidholding member'into :holding engagement with said splitring'cla1npandfor locking same in suchengageme'nt, said stud having a portion cutaway to clear. the jpath'of said drill .or

7. A jig for holding split-ring clamps for drillkl ring or, reaming theclamping bolt holes including, a support, a stud carried by said'supportand adapted to receive said split-ring clamp,

a holding member adapted to engage said splitring clamp, when held bysaid stud at both sides of its dividing kerf, means fo'r, urging saidholding member into holding engagement with said split-ring clamp andfor locking'same in such engagement, and a drill or reamer guidesupported-on said support and adapted to eifectw, properrelativepositioning of said jig and a" drill or reamer, said drill orreamer'guide being adjustable.

8. A jig for holding split-ring clamps for drilling orreaming theclamping bolt holes includ in a support, a stud carried bysaid's'upp'ort and adapted to receive said split-ring clamp,

a holding member adapted to engage 'said'splitring clamp, when held (by,said'stud at both sides of its dividingkerf, means, for urging saidholding member into holding 'engagementwith said split-ring clamp andfor locking same in such engagement, and a drill or reamer guidesupported on said support and adapted to effect properrelativepositioning of said jig and adrill' or reamer, saiddrill orreamer guide being ad-.

ciprocable plunger having rack teeth thereon, a shaft, a pinion on saidshaft and meshing with said rack teeth, and fixed on said shaft, aportion fixed on said support and an actuating'handle, said lockallowing said shaft to be actuated in both directions a lock having aportion by said handle but preventing withdrawal from holding positionexcept by movement of said handle. ELMER F. *BA'I'I'ERMAN.

JOS. V'ERDERBER.

